Image printing apparatus and control method
An image printing apparatus and a method of controlling the same are capable of appropriately correcting the conveyance amount in each of a plurality of conveyance paths. In a case of conveying a print medium along a first conveyance path, a controller controls the driving of a conveyance motor based on first information. In a case of conveying the print medium along a second conveyance path, the controller controls the driving of the conveyance motor based on second information, which is different from the first information.
1 . A printing apparatus comprising:
a conveyance roller configured to convey a sheet in a conveyance direction;
a printing unit configured to print an image onto a sheet conveyed by the conveyance roller;
a first conveyance path provided downstream of the printing unit in the conveyance direction and configured to discharge a sheet on which an image is printed by the printing unit;
a second conveyance path, which is different from the first conveyance path, provided downstream of the printing unit in the conveyance direction and configured to discharge a sheet on which an image is printed by the printing unit; and
a control unit configured to perform control so that:
in a case of conveying a sheet along the first conveyance path, the sheet is conveyed by the conveyance roller with a first conveyance amount, and
in a case of conveying a sheet along the second conveyance path, the sheet is conveyed by the conveyance roller with a second conveyance amount different from the first conveyance amount, wherein
the control unit executes a first mode in which the control unit controls conveyance of a sheet along the first conveyance path using the conveyance roller and obtains a first correction value for the first conveyance amount, and a second mode in which the control unit controls conveyance of a sheet along the second conveyance path using the conveyance roller and obtains a second correction value for the second conveyance amount.
2 . The printing apparatus according to claim 1 , wherein the control unit derives the second correction value based on the first correction value.
3 . The printing apparatus according to claim 1 , further comprising a discharge roller provided downstream of the conveyance roller on the second conveyance path and configured to convey a sheet,
wherein the control unit changes a conveyance amount of a sheet between a case in which a leading edge of the sheet is between the discharge roller and the conveyance roller and a case in which the leading edge of the sheet is downstream of the discharge roller.
4 . The printing apparatus according to claim 3 , further comprising a stacker configured to stack sheets conveyed by the discharge roller.
5 . The printing apparatus according to claim 3 , further comprising a first motor configured to drive the conveyance roller and a second motor configured to drive the discharge roller.
6 . The printing apparatus according to claim 1 , further comprising a sheet feed unit configured to feed a sheet from a roll,
wherein the conveyance roller conveys a sheet fed by the sheet feed unit.
7 . The printing apparatus according to claim 6 , further comprising a cutter configured to cut a sheet.
8 . The printing apparatus according to claim 1 , further comprising a discharge port configured to discharge a sheet conveyed along the first conveyance path.
9 . The printing apparatus according to claim 1 , further comprising a flap configured to switch between conveyance of a sheet along the first conveyance path and conveyance of a sheet along the second conveyance path.
10 . The printing apparatus according to claim 1 , wherein the printing unit comprises a printing head configured to eject ink onto a sheet.
11 . The printing apparatus according to claim 10 , wherein the control unit controls to alternately perform a conveyance operation using the conveyance roller and a printing operation in which the printing head moves in a direction crossing the conveyance direction to print an image, and
in the conveyance operation, the control unit causes the conveyance roller to convey a sheet with the first conveyance amount or with the second conveyance amount.
12 . A printing method comprising:
conveying a sheet in a conveyance direction using a conveyance roller;
printing, using a printing unit, an image onto a sheet which is conveyed, a first conveyance path and a second conveyance path being provided downstream of the printing unit in the conveyance direction for discharging a sheet on which an image is printed by the printing unit;
controlling so that:
in a case of conveying a sheet along the first conveyance path, the sheet is conveyed by the conveyance roller with a first conveyance amount, and
in a case of conveying a sheet along the second conveyance path, the sheet is conveyed by the conveyance roller with a second conveyance amount different from the first conveyance amount; and
executing a first mode in which a sheet is conveyed along the first conveyance path by the conveyance roller and a first correction value for the first conveyance amount is obtained, and a second mode in which a sheet is conveyed along the second conveyance path by the conveyance roller and a second correction value for the second conveyance amount is obtained.
13 . The printing method according to claim 12 , wherein the second correction value is derived based on the first correction value.
14 . The printing method according to claim 12 , further comprising discharging a sheet using a discharge roller which is provided downstream of the conveyance roller on the second conveyance path,
wherein a conveyance amount of a sheet is changed between a case in which a leading edge of the sheet is between the discharge roller and the conveyance roller and a case in which the leading edge of the sheet is downstream of the discharge roller.
15 . The printing method according to claim 14 , further comprising stacking sheets conveyed by the discharge roller on a printing apparatus.